The Environmental Protection Agency (EPA) is taking final action to approve a State Implementation Plan (SIP) revision submitted by the State of Alabama through a letter dated February 27, 2020, to add regulations maintaining compliance with the State's nitrogen oxides (NO<INF>X</INF>) SIP Call obligations for large non-electricity generating units (non-EGUs), to repeal the State's previously sunsetted NO<INF>X</INF> Budget Trading Program regulations, and to repeal the State's Clean Air Interstate Rule (CAIR) regulations.

The Environmental Protection Agency (EPA) is approving a Clean Air Act (CAA or the ``Act'') section 111(d) state plan submitted by the North Dakota Department of Environmental Quality (NDDEQ or the ``Department'') on July 28, 2020 for the control of air pollutants from existing municipal solid waste (MSW) landfills. The EPA is also approving a CAA section 111(d)/129 state plan submitted by the Department on the same date for the control of air pollutants from existing commercial and industrial solid waste incineration (CISWI) units and air curtain incinerator (ACI) units.

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the State of Utah. The revision fulfills the base year inventory requirement for the 2015 8- hour ozone national ambient air quality standard (NAAQS) for the Uinta Basin, Northern Wasatch Front, and Southern Wasatch Front nonattainment areas (NAAs). Utah submitted the base year emissions inventories to meet, in part, the nonattainment requirements for Marginal ozone NAAs under the 2015 8-hour ozone NAAQS.

The Environmental Protection Agency (EPA) is approving a Clean Air Act (CAA or the ``Act'') section 111(d) state plan submitted by the North Dakota Department of Environmental Quality (NDDEQ or the ``Department'') on July 28, 2020 for the control of air pollutants from existing municipal solid waste (MSW) landfills. The EPA is also approving a CAA section 111(d)/129 state plan submitted by the Department on the same date for the control of air pollutants from existing commercial and industrial solid waste incineration (CISWI) units and air curtain incinerator (ACI) units.